Summary of Significant Accounting Policies (Details 1) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Summary of Significant Accounting Policies
Beginning balance	$ 268,000	$ 65,000
Bad debt provision	71,000	203,000
Accounts written-off	111,000	0
Recoveries	(95,000)	0
Ending balance	$ 355,000	$ 268,000